Hello, in the red line, there is tunnel, i dont want this fog on this part. how an i hide or remove it?
Hi FOG hide
Try this way to take a render without fog, then overlay the image with fog with without only must there is the tunnel. Try it this way. 
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@riccardofortelli thanks. I thought about this way, but had a hope there was a control way of fog. Thanks i will use this trick
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